/*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Copyright (c) 2023 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file has been modified by Huawei to verify type inference by adding verification statements.
*/

// === tests/cases/compiler/overloadWithCallbacksWithDifferingOptionalityOnArgs.ts ===
declare function AssertType(value:any, type:string):void;
function x2(callback: (x?: number) => number);
function x2(callback: (x: string) => number);
function x2(callback: (x: any) => number) { }
x2(() => 1);
AssertType(x2(() => 1), "any");
AssertType(x2, "{ ((?number) => number): any; ((string) => number): any; }");
AssertType(() => 1, "() => number");
AssertType(1, "int");

x2((x) => 1 );
AssertType(x2((x) => 1 ), "any");
AssertType(x2, "{ ((?number) => number): any; ((string) => number): any; }");
AssertType((x) => 1, "(number) => number");
AssertType(x, "number");
AssertType(1, "int");


